The Dura-Ace 9150 front derailleur supplies some of the best shifting quality in the game, for quick and smooth performance even under high pedaling torque.

Combined with Shimano's Synchro Shift customizable programming, Dura-Ace Di2 delivers a level of intuitive shift performance never before seen.

Highlights

• Shimano Synchronized Shift
• Ergonomic shifting operation without stress
• Race endurance for less damage in a crash
• Quick and smooth front shifting "under" high pedaling torque
• Maintains compact and smooth appearance

Specifications

• Top Gear Teeth: 46-55T
• Chain Stay Angle: 61-66
• Chain Line: 43.5
• Weight: 104g